What is the NPV of a project which requires at the beginning PLN $12000$ and pays back at the end of half a year PLN $4,000$ for a period of $2$ years? Please assume that market rate is fixed and equals $12\%$ pa$.$ during the whole investment.

A$.19669\mathrm{.}3$

B$.7669\mathrm{.}3$

C$.4445\mathrm{.}6$

D$.1860$

E$.16445\mathrm{.}6$

F$.12000$